Story

The more Firefox is the same as all the other browsers the less reason there will be to use Firefox specifically. I use certain plugins that are essential for my browsing requirements and work-flow. Many of these will likely cease to exist:

* Adblock Plus
* DownThemAll!
* Firemacs
* It's All Text!
* NoScript
* ProfileSwitcher
* Session Manager
* Grease Monkey

While it will be nice to have more supported and up-to-date plug-ins, I believe that the cost is too high for the value gained - especially since most plug-ins for the masses that this will facilitate aren't plug-ins that are desirable unless you're one of the sheep.